74HC4538 データシートの表示（PDF） - ON Semiconductor
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74HC4538 Datasheet PDF : 16 Pages
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MC74HC4538A
MAXIMUM RATINGS (Note 1)
Symbol
Parameter
Value
Unit
VCC
VI
VO
IIK
IOK
IO
ICC
IGND
TSTG
TL
TJ
qJA
DC Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Diode Current
DC Output Diode Current
DC Output Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature Range
Lead temperature, 1 mm from Case for 10 Seconds
Junction temperature under Bias
Thermal resistance
(Note 2)
A, B, Reset
CX, RX
PDIP
SOIC
TSSOP
*0.5 to )7.0
*0.5 v VI v VCC )0.5
*0.5 v VO v VCC )0.5
$20
$30
$25
$25
$100
$100
*65 to )150
260
)150
78
112
148
V
V
V
mA
mA
mA
mA
mA
_C
_C
_C
_C/W
PD
Power Dissipation in Still Air at 85_C
PDIP
750
mW
SOIC
500
TSSOP
450
MSL
Moisture Sensitivity
Level 1
FR
VESD
Flammability Rating
ESD Withstand Voltage
Oxygen Index: 30% – 35%
UL–94–VO (0.125 in)
Human Body Model (Note 3)
>2000
V
Machine Model (Note 4)
>100
Charged Device Model (Note 5)
>500
ILatch–Up Latch–Up Performance
Above VCC and Below GND at 85_C (Note 6)
$300
mA
1. Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Extended exposure to these
conditions or conditions beyond those indicated may adversely affect device reliability. Functional operation under absolute maximum–rated
conditions is not implied.
2. IO absolute maximum rating must be observed.
3. Tested to EIA/JESD22–A114–A.
4. Tested to EIA/JESD22–A115–A.
5. Tested to JESD22–C101–A.
6. Tested to EIA/JESD78.
7. For high frequency or heavy load considerations, see the ON Semiconductor High–Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC
DC Supply Voltage (Referenced to GND)
3.0*
Vin, Vout
DC Input Voltage, Output Voltage (Referenced to GND)
0
TA
Operating Temperature, All Package Types
–55
tr, tf
Input Rise and Fall Time
(Figure 7)
A or B (Figure 5)
VCC = 2.0 V
0
VCC = 4.5 V
0
VCC = 6.0 V
0
–
6.0
V
VCC
V
+125
_C
1000
ns
500
400
No Limit
Rx
External Timing Resistor
Cx
External Timing Capacitor
VCC < 4.5 V
1.0
VCC ≥ 4.5 V
2.0
0
†
kW
†
†
mF
*The HC4538A will function at 2.0 V but for optimum pulse–width stability, VCC should be above 3.0 V.
†The maximum allowable values of Rx and Cx are a function of the leakage of capacitor Cx, the leakage of the HC4538A, and leakage due to board layout
and surface resistance. For most applications, Cx/Rx should be limited to a maximum value of 10 mF/1.0 MW. Values of Cx > 1.0 mF may cause a
problem during power down (see Power Down Considerations). Susceptibility to externally induced noise signals may occur for Rx > 1.0 MW.
8. Unused inputs may not be left open. All inputs must be tied to a high–logic voltage level or a low–logic input voltage level.
9. Information on typical parametric values can be found in the ON Semiconductor High–Speed CMOS Data Book (DL129/D).
http://onsemi.com
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